Question

5. Discussion: Explain how your data gives evidence of correct product identity and purity. Include: a. A comparison of IR and NMR spectra with that of starting material as well as what is predicted for pure product. b. What results of the bromine and potassium permangenate tests indicate about the identity of the functional group in your product.

This is the IR for CYclohexanol and acid

This is the NMR of product for the acid-catalyzed elimination from the cyclohexanol

Saturation results

Assume, that when bromine is added to the product, the resulting mixture is colorless. If potassium permanganate is added to the product, the formation of a brown precipitate is observed.

starting material info: product and reactants

HERE ARE TWO MORE QUESTIONS:

Answer 1

Abs. @_when_Bromine added ie Alkene _to_FormL2_dbxomo cyclabexanc which is folourless. Reactions OM BE BY21 Waters 'E વૈmics clohexanot CHclohehere IE_kMnen added then__brocco _ept observed formation of 1,2 diel. IR - Cyclohexanel- Assymetrica 12800-2900 cm → straching ID 3100 - 3200 cmo! 0-1 straching. Lii)_1200-1300 cmt CH_bending O NMR- Spectra of_product. a n 4 m, 5.670 ppm) of 5 Plno, braon Coldu OH امنع حمل _H = 4H (multiplet, 2.0 Sppon e-4H (mutiplel, 1.62 8ppm)-

Q 2.

Explination : Cyclohexanol whene reacted with Acid catalysed reaction give an liquid cylohexene distilled off collected and purified. Any acid tend to be used it is safer and proudce less messy reaction. Acid catalysed reaction are steriospecific but base catalysed reaction are sterioselective depending on which type of base we have to used . Hense Acid catalysed reaction favour.

Q3.

Explination: Here an elimaination reaction only we have to used Strong acid which having Pka less than 2. Because for the push pull of hydroxy group and intermidate is important. But by using acetic acid Pka 4.7 which is higher than our range. Their is might chances of Reversible reaction hence we used an Strong acid like H2SO4 pka 1.